Switch contact testing device

Abstract

The application relates to the technical field of switch contact testing and discloses a switch contact testing device which comprises a clamping assembly and a testing assembly, the clamping assembly comprises a seat body and a plurality of clamping plates, the seat body is used for bearing a switch, the plurality of clamping plates are respectively located on two sides of the switch, the clamping plates are in sliding connection with the seat body, the plurality of clamping plates can move to the side close to the switch to clamp the switch; the testing assembly comprises a simulation contact, a lifting piece and a pressure sensor, the simulation contact is located on the upper side of the seat body, the lifting piece is connected with the simulation contact, the lifting piece is used for driving the simulation contact to contact the contact of the switch, and the pressure sensor is arranged between the simulation contact and the lifting piece and is used for detecting the pressure borne by the simulation contact. The switch contact testing device of the embodiment of the application realizes quick clamping positioning of the switch through the clamping assembly, the clamping operation process of the switch is simplified, and the preparation efficiency before testing is improved without the aid of additional tools.

Description

Technical Field

[0001] This invention belongs to the field of switch contact testing technology, and specifically relates to a switch contact testing device. Background Technology

[0002] As a core component of high-voltage disconnectors in power systems, the contact pressure of switch contacts is a key parameter determining the conductivity, operational stability, and reliability of the main circuit. Regular and accurate testing of the contact pressure of switch contacts is essential to ensuring the safe and stable operation of the power system.

[0003] Existing switch contact pressure testing devices mostly rely on simple bolt tightening or general-purpose clamps for clamping and positioning. This not only involves cumbersome operation procedures, requiring additional tools and complex steps, but also results in low testing efficiency. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a switch contact testing device that can quickly clamp switch contacts, improving testing efficiency.

[0005] The switch contact testing device of this invention includes:

[0006] A clamping assembly includes a base and a plurality of clamping plates. The base is used to support a switch. The plurality of clamping plates are respectively located on both sides of the switch. The clamping plates are slidably connected to the base. The plurality of clamping plates can move toward the side closer to the switch to clamp the switch. The test assembly includes a simulated contact, a lifting component, and a pressure sensor. The simulated contact is located on the upper side of the base. The lifting component is connected to the simulated contact and is used to drive the simulated contact to make contact with the contact of the switch. The pressure sensor is disposed between the simulated contact and the lifting component and is used to detect the pressure on the simulated contact.

[0007] The switch contact testing device of this invention provides a stable support foundation for the switch through a base, ensuring the stability of the switch during testing and laying the foundation for subsequent accurate testing. A clamping plate clamps and positions the switch from both sides, preventing displacement during testing and ensuring precise contact between the simulated contact and the switch contact. A lifting component drives the simulated contact to automatically contact the switch contact, replacing manual operation and improving the accuracy and consistency of the contact action. The simulated contact simulates the actual contact state with the switch contact during operation, ensuring that the test results accurately reflect the actual contact pressure of the switch contact. A pressure sensor directly detects the pressure on the simulated contact, achieving accurate acquisition of the switch contact pressure and providing accurate data support for judging the switch contact performance. The clamping assembly enables rapid clamping and positioning of the switch without the need for additional tools, simplifying the switch clamping process and improving pre-test preparation efficiency. The testing assembly integrates simulated contact and pressure detection, making the switch contact pressure testing process simpler and improving overall testing efficiency.

[0008] In some embodiments, the clamping assembly further includes a plurality of sliding grooves and a plurality of sliding rods, wherein the plurality of sliding grooves correspond one-to-one with the plurality of clamping plates, the sliding grooves are formed on the base, and each clamping plate is connected to a sliding rod, the sliding rod being slidably disposed in the sliding groove.

[0009] In some embodiments, the base is a hollow structure, the sliding rod extends into the base, and the clamping assembly further includes a rotating disk and a plurality of connecting rods. The rotating disk is rotatably disposed in the base, and the plurality of connecting rods correspond one-to-one with the plurality of clamping plates. One end of the connecting rod is hinged to the sliding rod, and the other end of the connecting rod is hinged to the rotating disk. The connecting rods on both sides of the central axis of the rotating disk are centrally symmetrically arranged.

[0010] In some embodiments, the clamping assembly further includes a locking lever disposed on the side of the base body, the locking lever extending into the base body, the locking lever being threadedly connected to the base body, the radius of the rotating disk gradually increasing along its circumferential direction, and the locking lever being able to contact the circumferential side of the rotating disk to restrict the rotation of the rotating disk after the switch is clamped by the clamping plate.

[0011] In some embodiments, the clamping assembly further includes a rotating handle, which is rotatably mounted on the base and coaxially connected to the rotating disk.

[0012] In some embodiments, the clamping assembly further includes a limiting member disposed on the clamping plate, the limiting member including a limiting plate slidably disposed on the clamping plate, the limiting plate being located on the side of the clamping plate closer to the switch, the limiting plate being used to limit the movement of the switch in the vertical direction.

[0013] In some embodiments, the limiting member further includes a mounting groove formed in the clamping plate, one end of the limiting plate is slidably disposed in the mounting groove, a first spring is connected between the limiting plate and the bottom wall of the mounting groove, a magnetic block is disposed on the upper side of the limiting plate, the magnetic block is connected to the base body, and the magnetic block is magnetically attracted to the limiting plate; Under the magnetic force of the magnetic block, the limiting plate stretches the first spring and is located above the mounting groove; when the limiting plate moves away from directly below the magnetic block, the limiting plate moves downward under the pulling force of the first spring.

[0014] In some embodiments, the limiting member further includes a rack, a mating tooth, and a second spring disposed in the mounting groove. The rack is connected to the side wall of the mounting groove, and the toothed grooves on the rack are spaced vertically. The upper side of the toothed groove is horizontal, and the lower side of the toothed groove is inclined. The mating tooth is connected to the limiting plate and is inserted into the toothed groove. The upper side of the mating tooth is horizontal and is used to engage with the upper side of the toothed groove to limit the upward movement of the mating tooth. The lower side of the toothed groove is used to contact the mating tooth so that the rack compresses the second spring to avoid the mating tooth.

[0015] In some embodiments, the limiting member further includes a mounting rod and an abutment rod. The mounting rod is disposed on the base body and connected to the magnetic block. The mounting rod is located on the side of the clamping plate away from the switch. The abutment rod is connected to the rack and pinion, and the tooth groove is located on the side of the mating tooth closer to the switch. When the clamping plate is reset, the abutting rod abuts against the mounting rod, and the abutting rod drives the rack to move towards the switch, so that the mating teeth move out of the tooth groove, thereby resetting the limiting plate.

[0016] In some embodiments, the test assembly further includes a mounting base and a clamping member. The mounting base is connected to the lifting member. The mounting base has a downward-facing insertion groove for accommodating the simulated contact. The clamping member is used to confine the simulated contact within the insertion groove. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the clamping component in this invention.

[0019] Figure 3 This is a schematic diagram of the rotating disk in this invention.

[0020] Figure 4 This is the present invention. Figure 2 A magnified view of a portion of point A in the middle.

[0021] Figure 5 This is a schematic diagram of the test component in this invention.

[0022] Figure label: 1. Clamping assembly; 11. Base; 12. Clamping plate; 13. Slide groove; 14. Sliding rod; 15. Rotating disk; 16. Connecting rod; 17. Locking rod; 18. Rotating handle; 19. Limiting component; 191. Limiting plate; 192. Mounting slot; 193. First spring; 194. Magnet; 195. Rack; 196. Mating tooth; 197. Second spring; 198. Mounting rod; 199. Abutment rod; 2. Test components; 21. Simulated contact; 22. Lifting component; 23. Mounting base; 24. Clamping component; 241. Claw; 242. Third spring; 243. Rotating sleeve; 244. Protrusion. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] like Figures 1-5 As shown, the switch contact testing device of this embodiment includes a clamping component 1 and a testing component 2.

[0025] The clamping assembly 1 includes a base 11 and a plurality of clamping plates 12. The base 11 is used to support the switch, and the plurality of clamping plates 12 are respectively located on both sides of the switch. The clamping plates 12 are slidably connected to the base 11, and the plurality of clamping plates 12 can move toward the side closer to the switch to clamp the switch. The test component 2 includes a simulated contact 21, a lifting member 22, and a pressure sensor. The simulated contact 21 is located on the upper side of the base 11. The lifting member 22 is connected to the simulated contact 21 and is used to drive the simulated contact 21 to contact the switch contact. The pressure sensor is set between the simulated contact 21 and the lifting member 22 and is used to detect the pressure on the simulated contact 21.

[0026] The switch contact testing device of this invention provides a stable support foundation for the switch through a base, ensuring the stability of the switch during testing and laying the foundation for subsequent accurate testing. A clamping plate clamps and positions the switch from both sides, preventing displacement during testing and ensuring precise contact between the simulated contact and the switch contact. A lifting component drives the simulated contact to automatically contact the switch contact, replacing manual operation and improving the accuracy and consistency of the contact action. The simulated contact simulates the actual contact state with the switch contact during operation, ensuring that the test results accurately reflect the actual contact pressure of the switch contact. A pressure sensor directly detects the pressure on the simulated contact, achieving accurate acquisition of the switch contact pressure and providing accurate data support for judging the switch contact performance. The clamping assembly enables rapid clamping and positioning of the switch without the need for additional tools, simplifying the switch clamping process and improving pre-test preparation efficiency. The testing assembly integrates simulated contact and pressure detection, making the switch contact pressure testing process simpler and improving overall testing efficiency.

[0027] Specifically, the switch is placed on the base 11, which provides support for the switch. Multiple clamping plates 12 are pushed to slide along the base 11 towards the side closer to the switch. The multiple clamping plates 12 press against the switch from both sides, completing the clamping and positioning of the switch. The lifting component 22 is activated and drives the simulated contact 21 to move downward, so that the simulated contact 21 contacts the switch contact. During the contact process, the reaction force on the simulated contact 21 is transmitted to the pressure sensor set between the simulated contact 21 and the lifting component 22. The pressure sensor detects the pressure on the simulated contact 21 in real time, realizing the test of the contact pressure of the switch contact.

[0028] In some embodiments, the clamping assembly 1 further includes a plurality of sliding grooves 13 and a plurality of sliding rods 14. The plurality of sliding grooves 13 correspond one-to-one with a plurality of clamping plates 12. The sliding grooves 13 are formed on the base 11. Each clamping plate 12 is connected to a sliding rod 14, and the sliding rod 14 is slidably disposed in the sliding groove 13.

[0029] The switch contact testing device of this invention provides a fixed guide path for the movement of the sliding rod through a slide groove, limiting the sliding direction of the clamping plate and preventing deviation during the sliding process, thus ensuring the accuracy of clamping and positioning. The sliding rod effectively connects the clamping plate and the slide groove, converting the sliding of the clamping plate into the movement of the sliding rod along the slide groove, improving the stability and smoothness of the clamping plate's sliding process. The cooperation between the slide groove and the sliding rod makes the sliding action of the clamping plate smoother, reducing frictional loss between the clamping plate and the base, and extending the service life of the clamping assembly.

[0030] Specifically, when the clamping plate 12 is pushed to slide along the base 11, the sliding rod 14 connected to the clamping plate 12 slides synchronously along the corresponding slide groove 13 on the base 11 as the clamping plate 12 moves. The slide groove 13 provides guidance and limit for the movement of the sliding rod 14, so that the clamping plate 12 moves smoothly towards the side closer to the switch in a preset direction, thus completing the clamping and positioning of the switch. Subsequently, the lifting component 22 drives the simulated contact 21 to contact the switch contact.

[0031] In some embodiments, the base 11 is a hollow structure, and the sliding rod 14 extends into the base 11. The clamping assembly 1 also includes a rotating disk 15 and a plurality of connecting rods 16. The rotating disk 15 is rotatably disposed in the base 11, and the plurality of connecting rods 16 correspond one-to-one with the plurality of clamping plates 12. One end of the connecting rod 16 is hinged to the sliding rod 14, and the other end of the connecting rod 16 is hinged to the rotating disk 15. The connecting rods 16 on both sides of the central axis of the rotating disk 15 are centrally symmetrically arranged.

[0032] The switch contact testing device of this invention converts rotational motion into the extension and retraction motion of connecting rods through a rotating disk, achieving synchronous driving of multiple clamping plates by a single drive source and simplifying the operation of the clamping assembly. The connecting rods enable a flexible hinged connection between the rotating disk and the sliding rod, smoothly transmitting the rotation of the rotating disk into the linear movement of the sliding rod, ensuring smooth power transmission. The centrally symmetrically arranged connecting rods ensure that the clamping plates on both sides of the rotating disk always move synchronously and equidistantly, resulting in a uniform distribution of clamping force on the switch and preventing displacement or damage due to uneven force. The hollow base provides built-in installation space for the rotating disk and connecting rods, concealing the drive transmission structure within the base and improving the overall compactness of the clamping assembly. The sliding rods extend into the base and connect with the connecting rods, achieving effective linkage between the external clamping plates and the internal transmission structure, ensuring the synchronicity and accuracy of the clamping action.

[0033] Specifically, the base 11 is a hollow structure, and the sliding rod 14 extends into the base 11. When the rotating disk 15 inside the base 11 is rotated, one end of the connecting rod 16 is hinged to the rotating disk 15 and the other end is hinged to the sliding rod 14. The connecting rods 16 on both sides of the central axis of the rotating disk 15 are centrally symmetrically arranged. The rotation of the rotating disk 15 drives all the connecting rods 16 to move synchronously. The connecting rods 16 push the corresponding sliding rods 14 to slide along the slide groove 13, thereby driving all the clamping plates 12 to move synchronously towards the side closer to the switch, and simultaneously pressing against the switch from both sides to complete the clamping and positioning. Subsequently, the lifting component 22 drives the simulated contact 21 to contact the switch contact.

[0034] In some embodiments, the clamping assembly 1 further includes a locking lever 17, which is disposed on the side of the base 11 and extends into the base 11. The locking lever 17 is threadedly connected to the base 11. The radius of the rotating disk 15 gradually increases along its circumferential direction. The locking lever 17 can contact the circumferential side of the rotating disk 15 to restrict the rotation of the rotating disk 15 after the clamping plate 12 clamps the switch.

[0035] The switch contact testing device of this invention uses a locking rod to effectively clamp and limit the rotating disk after clamping, restricting its circumferential rotation and preventing the clamping plate from loosening at the transmission source, thus ensuring the stability of the switch clamping and positioning. The threaded locking rod utilizes the self-locking characteristic of the thread to make the clamping state between the locking rod and the rotating disk more secure, less prone to loosening due to external forces such as test vibrations, improving the reliability of clamping and locking. The rotating disk with a gradually changing radius allows the locking rod to adapt to the clamping requirements of different circumferential positions of the rotating disk, achieving effective locking regardless of the clamping plate's position, improving the adaptability of the locking structure. The locking rod enables rapid locking and unlocking of the clamping state, with a simple operation method that requires no additional tools, further simplifying the clamping operation process and improving test preparation efficiency.

[0036] Specifically, rotating the rotating disk 15 drives the connecting rod 16 and the sliding rod 14 to move, causing the clamping plate 12 to move closer to the switch and complete the clamping of the switch. Then, the locking rod 17 on the side of the seat 11 is screwed on. Since the locking rod 17 is threaded to the seat 11, the screwing action causes the locking rod 17 to extend into the seat 11 until the end of the locking rod 17 is in close contact with the circumferential side of the rotating disk 15. Utilizing the structural feature that the radius of the rotating disk 15 gradually increases along the circumferential direction, the locking rod 17 presses against the rotating disk 15 to form a circumferential limit, restricting the rotation of the rotating disk 15 and preventing it from causing the clamping plate 12 to loosen, thus achieving the locking of the clamping state.

[0037] In some embodiments, the clamping assembly 1 further includes a rotating handle 18, which is rotatably mounted on the base 11 and is coaxially connected to the rotating disk 15.

[0038] The switch contact testing device of this invention provides a convenient manual operation component for the rotating disk by rotating the handle, which can drive the rotating disk to rotate without the need for additional tools, further simplifying the clamping and driving operation process and improving the ease of operation.

[0039] Specifically, when the rotating disk 15 needs to be driven to rotate, the rotating handle 18 on the operating seat 11 is coaxially connected to the rotating disk 15. The rotational motion of the rotating handle 18 is directly transmitted to the rotating disk 15, causing the rotating disk 15 to rotate synchronously. Then, through the connecting rod 16 and the sliding rod 14, the clamping plate 12 is driven to move towards the side closer to the switch to complete the clamping.

[0040] In some embodiments, the clamping assembly 1 further includes a limiting member 19 disposed on the clamping plate 12. The limiting member 19 includes a limiting plate 191 slidably disposed on the clamping plate 12. The limiting plate 191 is located on the side of the clamping plate 12 near the switch and is used to limit the movement of the switch in the vertical direction.

[0041] The switch contact testing device of this invention uses a limiting plate to create a vertical constraint on the switch, compensating for the positioning defects of simple horizontal clamping and preventing vertical displacement of the switch due to contact pressure during testing, thus ensuring comprehensive test positioning. The limiting component achieves integrated clamping and positioning of the switch in both horizontal and vertical directions, eliminating the need for additional positioning components, simplifying the overall operation of the device, and improving positioning efficiency. The sliding limiting plate can adapt to the vertical limiting requirements of switches of different heights, improving the adaptability of the limiting structure to different switch models and broadening the applicability of the device. The limiting plate also fixes the vertical position of the switch during testing, ensuring that the simulated contact and the switch contact are always in the preset contact position, improving the accuracy of contact pressure testing.

[0042] Specifically, when the clamping plate 12 is pushed to move towards the side closer to the switch, the limiting member 19 on the clamping plate 12 moves synchronously with the clamping plate 12. After the clamping plate 12 clamps the switch from both sides to complete the horizontal clamping, the limiting plate 191, which is slidably set on the clamping plate 12, is located on the side of the clamping plate 12 closer to the switch. The limiting plate 191 forms an abutment limit on the upper part of the switch, restricting the switch from moving in the vertical direction, thereby realizing the bidirectional positioning of the switch in both horizontal and vertical directions.

[0043] In some embodiments, the limiting member 19 further includes a mounting groove 192 formed in the clamping plate 12, one end of the limiting plate 191 is slidably disposed in the mounting groove 192, a first spring 193 is connected between the limiting plate 191 and the bottom wall of the mounting groove 192, a magnetic block 194 is disposed on the upper side of the limiting plate 191, the magnetic block 194 is connected to the base 11, and the magnetic block 194 is magnetically attracted to the limiting plate 191. Under the magnetic force of the magnetic block 194, the limiting plate 191 stretches the first spring 193 and is located above the mounting groove 192; when the limiting plate 191 moves away from directly below the magnetic block 194, the limiting plate 191 moves downward under the pulling force of the first spring 193.

[0044] The switch contact testing device of this invention uses a magnetic block to magnetically attract and store the limiting plate, allowing the limiting plate to automatically move upward when the clamping plate is reset, eliminating the need for manual storage and simplifying the operation process of picking up and clamping the switch. A first spring provides downward pulling force to the limiting plate, enabling it to automatically complete vertical limiting after moving with the clamping plate, automating the limiting action and improving positioning efficiency. An mounting groove provides guidance and accommodating space for the sliding of the limiting plate, ensuring the stability of the vertical sliding and preventing deviation during limiting, thus improving the accuracy of vertical limiting. The cooperation between the magnetic block and the first spring enables automatic switching between limiting plate storage and limiting, eliminating the need for additional control components and making the limiting structure's operation simpler and more reliable.

[0045] Specifically, when the clamping plate 12 is not moving toward the switch, the limiting plate 191 is directly below the magnetic block 194. Under the magnetic attraction between the magnetic block 194 and the limiting plate 191, the limiting plate 191 stretches the first spring 193 and is stored in the upper part of the mounting groove 192, without affecting the placement of the switch. When the rotating handle 18 is turned to move the clamping plate 12 toward the side closer to the switch, the limiting plate 191 moves away from directly below the magnetic block 194 along with the clamping plate 12. The magnetic constraint of the magnetic block 194 disappears, and the limiting plate 191 moves downward along the mounting groove 192 under the pulling force of the first spring 193 until it abuts against the upper part of the switch to achieve vertical limiting.

[0046] In some embodiments, the limiting member 19 further includes a rack 195, a mating tooth 196, and a second spring 197 disposed in the mounting groove 192. The rack 195 is connected to the side wall of the mounting groove 192 by the second spring 197. The tooth grooves on the rack 195 are spaced apart in the vertical direction. The upper side of the tooth groove is a horizontal plane, and the lower side of the tooth groove is an inclined plane. The mating tooth 196 is connected to the limiting plate 191 and is inserted into the tooth groove. The upper side of the mating tooth 196 is a horizontal plane. The upper side of the mating tooth 196 is used to engage with the upper side of the tooth groove to limit the upward movement of the mating tooth 196. The lower side of the tooth groove is used to contact the mating tooth 196 so that the rack 195 compresses the second spring 197 to avoid the mating tooth 196.

[0047] The switch contact testing device of this invention uses a rack and teeth to form a one-way limiting structure for a limiting plate, preventing the limiting plate from moving upward and avoiding loosening due to vibration or external force during testing, thus improving the reliability of vertical limiting. The teeth precisely engage with the grooves of the rack, structurally limiting the upward movement path of the limiting plate, making the vertical limiting constraint more robust and ensuring the stability of the switch's vertical position during testing. A second spring provides reset power to the rack, ensuring the rack and teeth remain in a close engagement state, preventing gaps between the grooves and teeth that could lead to limiting failure and improving the stability of the limiting structure. The inclined grooves and teeth enable smooth downward limiting of the limiting plate, allowing for engagement between the teeth and grooves without manual intervention, ensuring the automation and smoothness of the limiting action.

[0048] Specifically, after the clamping plate 12 moves the limiting plate 191 away from directly below the magnetic block 194, the limiting plate 191 moves downward along the mounting groove 192 under the pulling force of the first spring 193. The mating tooth 196 connected to the limiting plate 191 moves downward accordingly. During the downward movement, the lower side of the mating tooth 196 contacts the inclined surface of the lower side of the tooth groove on the rack 195, pushing the rack 195 to compress the second spring 197 and move away from the switch, so that the mating tooth 196 can be smoothly inserted into the tooth groove. After the mating tooth 196 is inserted into the tooth groove, its upper side is in contact with the horizontal surface of the upper side of the tooth groove. The rack 195 is reset under the elastic force of the second spring 197. The contact between the horizontal surfaces restricts the mating tooth 196 from moving upward, thereby restricting the limiting plate 191 from loosening upward.

[0049] In some embodiments, the limiting member 19 further includes a mounting rod 198 and an abutment rod 199. The mounting rod 198 is disposed on the base 11 and connected to the magnetic block 194. The mounting rod 198 is located on the side of the clamping plate 12 away from the switch. The abutment rod 199 is connected to the rack 195 and the tooth groove is located on the side of the mating tooth 196 close to the switch. When the clamping plate 12 is reset, the abutting rod 199 abuts against the mounting rod 198, and the abutting rod 199 drives the rack 195 to move closer to the switch so that the mating tooth 196 moves out of the tooth groove, thereby resetting the limiting plate 191.

[0050] The switch contact testing device of this invention triggers the movement of the rack by the abutment rod, realizing the automatic separation of the mating teeth and the tooth groove without manual operation to release the limit, simplifying the reset process of the limit plate and improving the convenience of switch picking and placing; the mounting rod provides a fixed abutment positioning point for the abutment rod, accurately triggering the limit release action, ensuring that the reset timing of the limit plate is synchronized with the reset action of the clamping plate, and improving the accuracy of structural linkage.

[0051] Specifically, when the switch needs to be released after the test, the handle 18 is rotated in the opposite direction to move the clamping plate 12 away from the switch and reset it. The clamping plate 12 simultaneously moves the abutment rod 199 until the abutment rod 199 abuts against the mounting rod 198 on the base 11. The abutment rod 199 is pushed by the mounting rod 198 and moves the rack 195 towards the switch. The rack 195 compresses the second spring 197, causing the tooth groove to separate from the mating tooth 196. The mating tooth 196 moves out of the tooth groove, and the upward constraint of the limiting plate 191 is released. When the clamping plate 12 continues to reset to directly below the magnetic block 194, the limiting plate 191 moves upward along the mounting groove 192 under the magnetic attraction of the magnetic block 194, stretches the first spring 193 and is stored in the upper part of the mounting groove 192.

[0052] In some embodiments, the test assembly 2 further includes a mounting base 23 and a clamping member 24. The mounting base 23 is connected to the lifting member 22. The mounting base 23 has an opening downward-facing embedding groove for accommodating the simulated contact 21. The clamping member 24 is used to restrict the simulated contact 21 in the embedding groove.

[0053] The switch contact testing device of this invention provides a dedicated mounting structure for the simulated contact via a mounting base, enabling indirect connection between the simulated contact and the lifting component. This ensures the positional stability of the simulated contact after installation and improves the accuracy of pressure detection. An embedding groove provides a pre-positioning constraint on the simulated contact, limiting its installation position and preventing misalignment during installation, thus ensuring precise alignment between the simulated contact and the switch contact. A clamping component firmly secures the simulated contact within the embedding groove, preventing loosening or displacement due to contact pressure during testing and ensuring reliable connection during testing. The combination of the mounting base and the clamping component allows for quick disassembly and replacement of the simulated contact without complex connection operations, adapting to the testing needs of different switch contact specifications and improving the device's versatility.

[0054] Specifically, when assembling test component 2, the simulated contact 21 is placed into the embedding groove of the mounting base 23 connected to the lifting component 22. The embedding groove provides initial accommodating positioning for the simulated contact 21. Then, the clamping component 24 restricts the simulated contact 21 within the embedding groove, achieving a fixed connection between the simulated contact 21 and the mounting base 23, thereby completing the linkage assembly of the simulated contact 21 and the lifting component 22. During testing, the lifting component 22 drives the mounting base 23 to move the simulated contact 21 downward, so that the simulated contact 21 contacts the contact of the switch. When the simulated contact 21 needs to be replaced, the restriction effect of the clamping component 24 is released, and the simulated contact 21 can be removed from the embedding groove to complete the replacement.

[0055] In some embodiments, the clamping member 24 includes a plurality of claws 241, a plurality of third springs 242, a rotating sleeve 243, and a plurality of protrusions 244. The plurality of claws 241, the plurality of third springs 242, and the plurality of protrusions 244 correspond one-to-one. The rotating sleeve 243 is rotatably sleeved on the mounting base 23. The plurality of claws 241 are spaced apart on the mounting base 23 in the circumferential direction. The middle section of the claws 241 is rotatably connected to the mounting base 23. The upper end of the claws 241 is connected to the mounting base 23 by a third spring 242. The lower end of the claws 241 abuts against the bottom surface of the simulated contact 21. The plurality of protrusions 244 are spaced apart on the inner ring surface of the rotating sleeve 243 in the circumferential direction. The side of the protrusions 244 near the claws 241 is an arc surface. The arc surface can contact the upper end of the claws 241. Under the elastic force of the third springs 242, the claws 241 restrict the simulated contact 21 in the embedded groove. When it is necessary to change the type of the simulated contact 21, rotate the rotating sleeve 243. The rotating sleeve 243 causes the protrusion 244 to contact the upper end of the pawl 241, so that the upper end of the protrusion 244 compresses the third spring 242, thereby causing the bottom end of the pawl 241 to flip outward and release the restriction on the simulated contact 21.

[0056] The switch contact testing device of this invention utilizes a lever principle to achieve bottom surface contact and limiting of the simulated contact through a chuck. This results in a small contact area and concentrated pressure, ensuring the positional stability of the simulated contact after it is clamped and preventing axial displacement during testing. A third spring provides continuous elastic driving force to the chuck, keeping it firmly against the simulated contact. The elastic force also has a buffering effect, preventing damage to the simulated contact from hard contact. A rotating sleeve enables the synchronous rotation of multiple protrusions, driving multiple chucks to move simultaneously, ensuring uniform circumferential force on the simulated contact and a smooth, non-deviation-prone unlocking process. The arc-shaped design of the protrusions facilitates smoother sliding between the protrusions and the upper end of the chucks, reducing mechanical friction, lowering resistance to rotation, and improving the convenience of unlocking.

[0057] Specifically, after the simulated contact 21 is placed into the embedding groove of the mounting base 23, the pawl 241 remains in its initial state under the elastic force of the third spring 242. The lower end of the pawl 241 is in close contact with the bottom surface of the simulated contact 21, and the pawl 241 is restricted in the embedding groove by the contact force, thus completing the clamping and fixing of the simulated contact 21. When the simulated contact 21 needs to be replaced, the rotating sleeve 243 is rotated. The rotating sleeve 243 drives the protrusion 244 on the inner ring surface to rotate synchronously. The arc surface of the protrusion 244 gradually contacts the upper end of the pawl 241 and applies a pushing force, causing the pawl 241 to rotate around the rotating connection point between its middle section and the mounting base 23. The upper end of the pawl 241 compresses the third spring 242, and the lower end flips outward and disengages from the bottom surface of the simulated contact 21, releasing the restriction on the simulated contact 21, which can then be removed for replacement.

[0058] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0062] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A switch contact testing device, characterized in that, include: The clamping assembly (1) includes a base (11) and a plurality of clamping plates (12). The base (11) is used to support the switch. The plurality of clamping plates (12) are respectively located on both sides of the switch. The clamping plates (12) are slidably connected to the base (11). The plurality of clamping plates (12) can move toward the side closer to the switch to clamp the switch. Test component (2), the test component (2) includes a simulated contact (21), a lifting member (22) and a pressure sensor. The simulated contact (21) is located on the upper side of the base (11). The lifting member (22) is connected to the simulated contact (21). The lifting member (22) is used to drive the simulated contact (21) to contact the contact of the switch. The pressure sensor is disposed between the simulated contact (21) and the lifting member (22). The pressure sensor is used to detect the pressure on the simulated contact (21).

2. The switch contact testing device according to claim 1, characterized in that, The clamping assembly (1) further includes multiple sliding grooves (13) and multiple sliding rods (14). The multiple sliding grooves (13) correspond one-to-one with the multiple clamping plates (12). The sliding grooves (13) are formed on the base (11). Each clamping plate (12) is connected to a sliding rod (14). The sliding rods (14) are slidably disposed in the sliding grooves (13).

3. The switch contact testing device according to claim 2, characterized in that, The seat (11) is a hollow structure, and the sliding rod (14) extends into the seat (11). The clamping assembly (1) also includes a rotating disk (15) and multiple connecting rods (16). The rotating disk (15) is rotatably disposed in the seat (11). The multiple connecting rods (16) correspond one-to-one with the multiple clamping plates (12). One end of the connecting rod (16) is hinged to the sliding rod (14), and the other end of the connecting rod (16) is hinged to the rotating disk (15). The connecting rods (16) on both sides of the central axis of the rotating disk (15) are centrally symmetrically arranged.

4. The switch contact testing device according to claim 3, characterized in that, The clamping assembly (1) further includes a locking rod (17), which is disposed on the side of the seat (11). The locking rod (17) extends into the seat (11) and is threadedly connected to the seat (11). The radius of the rotating disk (15) gradually increases along its circumferential direction. The locking rod (17) can contact the circumferential side of the rotating disk (15) to restrict the rotation of the rotating disk (15) after the switch is clamped by the clamping plate (12).

5. The switch contact testing device according to claim 4, characterized in that, The clamping assembly (1) further includes a rotating handle (18), which is rotatably mounted on the base (11) and is coaxially connected to the rotating disk (15).

6. The switch contact testing device according to claim 1, characterized in that, The clamping assembly (1) further includes a limiting member (19) disposed on the clamping plate (12). The limiting member (19) includes a limiting plate (191) slidably disposed on the clamping plate (12). The limiting plate (191) is located on the side of the clamping plate (12) near the switch. The limiting plate (191) is used to limit the movement of the switch in the vertical direction.

7. The switch contact testing device according to claim 6, characterized in that, The limiting member (19) also includes a mounting groove (192) formed in the clamping plate (12). One end of the limiting plate (191) is slidably disposed in the mounting groove (192). A first spring (193) is connected between the limiting plate (191) and the bottom wall of the mounting groove (192). A magnetic block (194) is disposed on the upper side of the limiting plate (191). The magnetic block (194) is connected to the base (11). The magnetic block (194) is magnetically attracted to the limiting plate (191). Under the magnetic force of the magnetic block (194), the limiting plate (191) stretches the first spring (193) and is located above the mounting groove (192); when the limiting plate (191) moves away from directly below the magnetic block (194), the limiting plate (191) moves downward under the pulling force of the first spring (193).

8. The switch contact testing device according to claim 7, characterized in that, The limiting member (19) further includes a rack (195), a mating tooth (196), and a second spring (197) disposed in the mounting groove (192). The rack (195) is connected to the side wall of the mounting groove (192) by the second spring (197). The tooth grooves on the rack (195) are spaced vertically. The upper side of the tooth groove is a horizontal plane, and the lower side of the tooth groove is an inclined plane. The mating tooth (196) is connected to the limiting plate (191). The mating tooth (196) is inserted into the tooth groove. The upper side of the mating tooth (196) is a horizontal plane. The upper side of the mating tooth (196) is used to engage with the upper side of the tooth groove to limit the upward movement of the mating tooth (196). The lower side of the tooth groove is used to contact the mating tooth (196) so that the rack (195) compresses the second spring (197) to avoid the mating tooth (196).

9. The switch contact testing device according to claim 8, characterized in that, The limiting member (19) also includes a mounting rod (198) and an abutment rod (199). The mounting rod (198) is disposed on the base (11) and connected to the magnetic block (194). The mounting rod (198) is located on the side of the clamping plate (12) away from the switch. The abutment rod (199) is connected to the rack (195). The tooth groove is located on the side of the mating tooth (196) close to the switch. When the clamping plate (12) is reset, the abutting rod (199) abuts against the mounting rod (198), and the abutting rod (199) drives the rack (195) to move closer to the switch so that the mating tooth (196) moves out of the tooth groove, thereby resetting the limiting plate (191).

10. The switch contact testing device according to claim 1, characterized in that, The test component (2) also includes a mounting base (23) and a clamping member (24). The mounting base (23) is connected to the lifting member (22). The mounting base (23) has an opening downward-facing embedding groove for accommodating the simulated contact (21). The clamping member (24) is used to restrict the simulated contact (21) in the embedding groove.

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